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<head>
    <meta charset="UTF-8">
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    

    <script>
        //object.assign() 实现去重
        const target = {a:1,b:2}
        const source = {b:2,c:3}
        console.log(Object.assign(target,source))
        //object.create()
        const parentobj = {
            getName(){
                console.log('my name is' + this.name)
            }
        }
        const obj = Object.create(parentobj)
        obj.name = 'lixuemin'
        obj.getName()

        //Object.defineProperty()
        const person
    </script>
</body>
</html>